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• Focus In An ItemsControl

  - by Andrew

  I have an ItemsControl that uses a DataTemplate. The DataTemplate contains a TextBox, which can receive keyboard focus. I need to be able to move the keyboard focus from the currently focused TextBox in the DataTemplate to the next TextBox, as if the Tab key has been pressed. I've noticed that there is a UIElement.MoveFocus() method, but this begs the question as to which UIElement should be used to call the method. This is probably the reason why I haven't gotten this method to work for me... Any help would be really appreciated! Thanks, Andrew

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• Type attribute for text_field

  - by Koning Baard XIV

  I have this code: <%= f.text_field :email, :type => "email", :placeholder => "[email protected]" %> So people can enter their email on an iPhone with the email keyboard instead of the ASCII keyboard. However, the output is: <input id="user_email" name="user[email]" placeholder="[email protected]" size="30" type="text" /> which should be: <input id="user_email" name="user[email]" placeholder="[email protected]" size="30" type="email" /> Is there a way to force Rails to use the email type instead of text, or must I use HTML directly? Thanks

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• Bring to front DatePicker on an UITextField

  - by crazyfr

  Hi, When an UITextField is firstResponder, I would like to bring to front an UIDatePicker (bottom part of the screen) without the "going down keyboard" (no call to UITextField resignFirstResponder). The aim is to process like UIKeyboard of UITextField which pop-up on nearly everything when it becomeFirstResponder. modalViewController seems to be fullscreen only. - showDatePicker:(id)sender { if([taskName isFirstResponder]) [taskName resignFirstResponder]; [self.view.window addSubview: self.pickerView]; // size up the picker view and compute the start/end frame origin (...) [UIView commitAnimations]; } This example is an animation of keyboard going down, and DatePicker going up, behind and not in front. Do you know a solution ? A piece of code would be welcome. Thanks in advance.

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• How is the iPhone SMS compose view implemented?

  - by erotsppa

  Regarding the SMS compose view as show in the picture below: I have two questions: 1) How is the text entry box implemented? There are no standard control from the API and the box is smart enough to resize when you press enter OR when the text is too long. Also the bar resizes with it. How is this done with the least coding? 2) How to code it such that when the keyboard shows up the whole view shifts up? Typically when the keyboard shows, it goes over your current view.

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• iphone monotouch BecomeFirstResponder in UISearchBar

  - by BahaiResearch.com

  In Monotouch when we call BecomeFirstResponder on a UISearchBar in the ViewWillAppear method, it does not cause the keyboard to appear.

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• Calling SetWindowsHookEx inside VS2008 debugger always returns NULL

  - by SoMoS

  we're working on a .Net application that does a low level keyboard hook. When we call the SetWindowsHookEx running inside the debugger the call always fail. When running from the compiled executable everything works fine. If we attach to the processs the the SetWindowsHookEx has been called everything works too. I've read somewhere (I can not remember) that VS already does a low level keyboard hook but this shouldn't be a problem as there is the CallNextHook function. Someone knows what's happening? EDIT: The code is pretty straigfoward, the exception is thrown inside debugger but not outside. Public Sub New() m_callback = New NativeMethods.KeyboardHookDelegate(AddressOf KeyboardCallback) End Sub Public Sub Start() m_handle = NativeMethods.SetWindowsHookEx(NativeMethods.HookType.WH_KEYBOARD_LL, m_callback, Marshal.GetHINSTANCE(Reflection.Assembly.GetExecutingAssembly().GetModules()(0)).ToInt32, 0) If m_handle = 0 Then Throw New Exception() End If End Sub

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• PHP CLI application debug in ZendStudio (STDIN)

  - by Yuriy

  0 I am trying to debug php CLI using Zend Studio. My problem: I can't get user input from keyboard. This is part of code (method in some class): public function getInput($promt = null, $defaultValue = null) { if(!isset($promt)){ $promt = self::$DEFAULT_PROMPT; } echo $promt; $stdin = fopen ( "php://stdin", "r" ); $val = fgets ( $stdin ); return $val; } So ZS walks through code quite ok, but it stops at $val=fgets() And I have no clue where am I supposed to enter something from keyboard. I tried in console, and everywhere, I chacked debug configuration (Allocate console = on) etc. HELP!

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• iPhone UIWebView becomeFirstResponder

  - by user505618

  I have an UIWebView with an <input type="text"/> html element in it. I want to focus the input element in the html and show the keyboard on the iPhone programmatically, without tapping the screen. I've tried the following: set the focus from JavaScript (in this case the onFocus JS event will fire but the keyboard won't show up) [webView becomeFirstresponder] (returns NO) set the first subview of the webView to be the firstResponder (returns NO) subclass UIWebView to return YES to canBecomeFirstResponder: (nothing happens) I'm trying to find the solution since yesterday but I couldn't find it. Please help.

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• IntelliSense has forgotten my code snippets!

  - by David

  Hi all I have a stack of code snippets imported into Visual Studio. Just recently, they have stopped displaying in Intellisense. If the keyboard shortcut doesn't bring up anything else on IntelliSense, then I can tab and the code snippet is inserted just fine. However, if the keyboard shortcut for the snippet happens to also bring up other items in IntelliSense, tabbing will select the first of those items, so I actually can't use the code snippet at all! Does anyone have any ideas why IntelliSense would be unable to list my code snippet shortcuts? I started using ReSharper recently, but that wouldn't be the problem surely?! Thanks for your help David

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• forwarding a notification to another class

  - by Mike

  I am using this method - (void)keyboardWillShow:(NSNotification *)notification that is triggered when the keyboard shows. When this method is triggered, it receives a notification that contains several parameters about the keyboard, as the animation duration, animation curve and frame. I need to forward this notification and all its parameters to another class. So, I've tried to do this inside keyboardWillShow: [[NSNotificationCenter defaultCenter] postNotificationName:@"doSomething" object:notification userInfo:nil]; the doSomething notification runs doSomething method on another class, and it has this form: - (void) doSomething:(NSNotification *)notification { but when I try to read the notification values on this other class, using, for example, myRect = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]; I obtain zero for all values. The notification is losing its parameters and not being forwarded. How can I do that? thanks.

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• How to prevent Windows XP from stealing my input Ctrl-Space which is meant for Emacs

  - by Dean

  I am learning and using Emacs. What I found annoying is that Ctrl-Space input will be stolen by Windows XP to switch the language bar instead of setting the mark in Emacs. The "language bar" is the native input languages selection such as Chinese keyboard other than English keyboard. Is there a way to temporarily prevent XP from stealing it? I have disabled the language bar from "Regional and language options" from Control Panel but the problem still exists. It doesn't happen on my Windows 2000 desktop at office but it happens on my work Windows XP laptop. Thank you very much.

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• AS3 TextField - unwanted carriage return when setting value to ""

  - by jevinkones

  I have an input TextField and have a KeyboardEvent.KEY_DOWN even listener on the stage to listen for the Keyboard.ENTER event. The event listener adds the entered text to an array or whatever, and then clears the TextField. The problem is that when the Enter key event fires and the TextField value is set to "", it leaves a carriage return in the TextField and the cursor positioned on the second line. WTF? I've been coding AS2 and AS3 for a LONG time and have never ran into this before. Am I losing my mind? Please help, people! :-) Example: var myTextArray:Array = new Array(); stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown); function onKeyDown(e:KeyboardEvent):void{ if(e.keyCode == Keyboard.ENTER){ if(_inputText.text != null){ myTextArray.push(_inputText.text); } _inputText.text = ""; } }

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• Special Character Meanings Defined

  - by Noctis Skytower

  In Python's module named string, there is a line that says whitespace = ' \t\n\r\v\f'. ' ' is a space character. '\t' is a tab character. '\n' is a newline character. '\r' is a carriage-return character. '\v' maps to '\x0b' (11). What does it mean and how might it be typed on a keyboard (any OS)? '\f' maps to '\x0c' (12). What does it mean and how might it be typed on a keyboard (any OS)?

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• AVD Screen orientation not changing with CTRL+F11 or CTRL+F12

  - by Brad Hein

  I run my app in the AVD emulator using eclipse but I'm unable to change the screen orientation in the AVD (Android 2.0 platform on the emulator). When I press CONTROL+F11 or CONTROL+F12 on the keyboard, nothing happens. No messages are generated in the adb debuglog/logcat either when I press either hotkey. According to http://developer.android.com/guide/developing/tools/emulator.html these are the correct hotkeys to switch the emulator's screen orientation. I tried it with my app, and with the messaging app. The hotkey has no affect in any case. I'm running Fedora 12, Gnome. I checked my Keyboard Shortcuts in the System - Preferences menu, nothing's attached to either hotkey. Same problem, 3 different PCs (all running Fedora Gnome).

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• How do I change the UIKeyboard when using the UISearchBar?

  - by Michael Yang

  I want to set the keyboard type of the UISearchBar to UIKeyboardAppearanceAlert, but I can't seem to access the UIKeyboard of the UISearchBar.

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• Eidetic memory: What magic numbers you still remember?

  - by Hao

  Long before you practice writing readable code, what "magic numbers" you still remember up to this day? here's some of my list: 72 80 75 77 13 32 27 - up down left right enter space escape 1 2 4 128 - blue green red blink 67h 33h 17h - interrupt for EMS, mouse, printer function AH 9, interrupt 21 alt+219 for block ASCII alt+164 ñ 90 NOP 13 10 carriage return, line feed ascii 1 and 2 face, ascii 3 heart. no not this heart: <3 :-) debug -o72,10 -o71,12 clears the BIOS password. I don't know what those numbers mean, it's like a trade secret that gets shared with each other during college days. ascii 7 sounds a beep P.S. Somehow, remembering some of these magic numbers can help you in some tech problems, your keyboard is broken, the office pal's keyboard doesn't have accented characters. An anecdote, during college, one of my friend asked me how to remove the newlines in his Word document. Not having used Word so much then, I somehow "intuitively" guessed to find ^013 and replace it with blank. Well it works :-)

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• In Dos batch file press ENTER key to open program or press any other key to exit from bat.

  - by user521875

  I have a DOS batch file that show some results on the cmd console. I want users to press Enter to run program or press any other key on the keyboard to exit. I don't want to use options/choices because in that case user will have to enter at least something which I need to check and set the action. Example: At the end of the cmd console something say like this Press ENTER to open abc.exe or press any key on the keyboard to exit! Thanks!

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• mediawiki markup equivalent of WMD editor?

  - by Justin Grant

  Anyone have a recommendation for an editor like the WMD editor, but using MediaWiki markup instead of Markdown? Our site is already using MediaWiki markup but we want a slicker editor without changing markup completely. Requirements include: live preview of formatted text underneath the markup you're typing a toolbar for common formatting (bold, italic, links, bullets, numbered-list, code, etc) keyboard shortcuts for each toolbar button (e.g. CTRL+B for bold) Undo/redo via keyboard shortcuts (CTRL+Z/CTRL+Y) or toolbar buttons works well in the usual set of popular browsers (including IE6!) open-source would be preferred

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• Is it possible to access variable of subclass using object of superclass in polymorphism

  - by fari

  how can i access state varibale of class keyboard with object of class kalaplayer /** * An abstract class representing a player in Kala. Extend this class * to make your own players (e.g. human players entering moves at the keyboard * or computer players with programmed strategies for making moves). */ public abstract class KalaPlayer { /** * Method by which a player selects a move. * @param gs The current game state * @return A side pit number in the range 1-6 * @throws NoMoveAvailableException if all side pits for the player are empty * (i.e. the game is over) */ public abstract int chooseMove(KalaGameState gs) throws NoMoveAvailableException; } public class KeyBoardPlayer extends KalaPlayer { /** * Method by which a player selects a move. * @param gs The current game state * @return A side pit number in the range 1-6 * @throws NoMoveAvailableException if all side pits for the player are empty * (i.e. the game is over) */ public KalaGameState state; public KeyBoardPlayer() { System.out.println("Enter the number of stones to play with: "); try { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int key = Integer.parseInt(br.readLine()); state=new KalaGameState(key); //key=player1.state.turn; } catch(IOException e) { System.out.println(e); } } public int chooseMove(KalaGameState gs) throws NoMoveAvailableException{ return 0; } } import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; public class KalaGame { KalaPlayer player1,player2; public KalaGame(KeyBoardPlayer Player1,KeyBoardPlayer Player2) { //super(0); player1=new KeyBoardPlayer(); player2 = new KeyBoardPlayer(); //player1=Player1; //player2=Player2; //player1.state ****how can i access the stae variable from Keyboard CLass using object from KalaPlayer key=player1.state.turn; } public void play() { System.out.println("Enter the number of stones to play with: "); try { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int key = Integer.parseInt(br.readLine()); System.out.println(key); KalaGameState state=new KalaGameState(key); printGame(); } catch(IOException e) { System.out.println(e); } }

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• Enable access for assistive device programmatically

  - by Dheeraj

  Hi All, I want to enable Access for assistive devices in System Preferences programmatically. But Problem is that my application is not running as root user and i do not want my application to be as root user and also should not ask for any authentication in between. I want to tap all keyboard events globally. I am using CGEventTapCreate() for the same.In the documentation of CGEventTapCreate() API it is mentioned that, Event taps receive key up and key down events if one of the following conditions is true: The current process is running as the root user. Access for assistive devices is enabled. In Mac OS X v10.4 & later, you can enable this feature using System Preferences, Universal Access panel, Keyboard view. I tried manually by checking the Enable Access for assistive devices from System Preference and it gives me expected output. So is there any way to do the same via program without asking for authentication and also application is not running as root user? Thanks, Dheeraj.

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• What is your most productive shortcut with Vim?

  - by Olivier Pons

  I've heard a lot about Vim, both pros and cons. It really seems you should be (as a developer) faster with Vim than with any other editor. I'm using Vim to do some basic stuff and I'm at best 10 times less productive with Vim. The only two things you should care about when you talk about speed (you may not care enough about them, but you should) are: Using alternatively left and right hands is the fastest way to use the keyboard. Never touching the mouse is the second way to be as fast as possible. It takes ages for you to move your hand, grab the mouse, move it, and bring it back to the keyboard (and you often have to look at the keyboard to be sure you returned your hand properly to the right place) Here are two examples demonstrating why I'm far less productive with Vim. Copy/Cut & paste. I do it all the time. With all the classical editors you press Shift with the left hand, and you move the cursor with your right hand to select text. Then Ctrl+C copies, you move the cursor and Ctrl+V pastes. With Vim it's horrible: yy to copy one line (you almost never want the whole line!) [number xx]yy to copy xx lines into the buffer. But you never know exactly if you've selected what you wanted. I often have to do [number xx]dd then u to undo! Another example? Search & replace. In PSPad: Ctrl+f then type what you want you search for, then press Enter. In Vim: /, then type what you want to search for, then if there are some special characters put \ before each special character, then press Enter. And everything with Vim is like that: it seems I don't know how to handle it the right way. NB : I've already read the Vim cheat sheet :) My question is: What is the way you use Vim that makes you more productive than with a classical editor?

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• iphone SDK: How to check user set up a valid IP , Netmask , Router ???

  - by WebberLai

  It is simple to understand after this pic. I add fewtextfields in tableview I already set the keyboard style is number pad. Now the problems is 1.Do I need to create 12 textfields ???ex. UITextField *ip1,ip2,ip3,ip4....or just set different tag for textfield ? 2.How to check user enter wrong char not 3 valid numbers (even the keyboard is set number pad,but it might can paste words...) 3.How to check user did follow this setting rules ??? <1If IP1 is 0~223 , IP2 need to be set 0~255,IP3,IP4 both are 0~255 <2If IP1 is 172 ,IP2 is set 16~31.IP3,IP4 both are 0~255; If IP1 is 192 ,IP2 must be 168.IP3 IP4 are 0~255 <3Netmask set default 255.255.255.0 <4Router 0~223 ,0~255 ,0~255 ,0~255 This IP setting rules is my friends tech me this ...I not sure the rules is right or not?

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• Application lifecycle. How to run something only when application starts

  - by David

  I have a dialog popup to indicate how long I want an activity to run. Seems simple enough, but its difficult to determine when the activity is really starting. If the user opens the keyboard on a G1 and thereby goes into landscape, that reruns the activities onCreate method. I can't have a static for the class or even create an application class, because I can't determine when the 'application' goes away. Even after destroying the only activity, the application is apparently still alive. Is there a way to determine that onCreate has been called because of the keyboard being extended or landscape mode invoked? Thanks

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• Linux standard input issue

  - by George2

  Hello everyone, I am new to Linux. And I am using Red Hat Enterprise Version 5. There is a ruby program which use standard input as its input (e.g. the Ruby program process input from standard input). I think standard input should be keyboard, correct? So, I think other kinds of input (non-standard input) should not work (i.e. the ruby program should not be able to read input from such non-standard input), but actually I have tried using pipe works, I am so confused because I think pipe should be some other kinds of input -- other than standard input, why it could work? i.e. put text "123" in abc.txt with pipe, could achieve the same result as using keyboard as input to type "123" for the ruby program. Here is the sample which works and makes me confused, cat abc.txt | ~/test/rubysrc/foo.rb thanks in advance, George

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• How to make an scrollable UITextField Inside UItableViewCell?

  - by user333624

  Hello everyone. I created a bunch of editable UITableViewCell by embedding an UITextField inside, but I have seen some apps that allows you to scroll the UItableview by scrolling inside an inactive editable cell. How can I do that? And how can I also dismiss the keyboard when tapping somewhere else? I know about the method: - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; if (touch.tapCount == 1) { [self resignFirstResponder]; } else { }} I put it inside my custom table view controller but the method doesn't seem to be called upon a tap, and I don't know if even if it gets called will dismiss the keyboard. Any help will be appreciated.

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